diff --git a/simd/cmd/root.go b/simd/cmd/root.go
index 2b18ddc7a1a4..c392bf1a3da2 100644
--- a/simd/cmd/root.go
+++ b/simd/cmd/root.go
@@ -78,6 +78,9 @@ func NewRootCmd() (*cobra.Command, params.EncodingConfig) {
 }
 
 func initRootCmd(rootCmd *cobra.Command, encodingConfig params.EncodingConfig) {
+	cfg := sdk.GetConfig()
+	cfg.Seal()
+
 	rootCmd.AddCommand(
 		genutilcli.InitCmd(simapp.ModuleBasics, simapp.DefaultNodeHome),
 		genutilcli.CollectGenTxsCmd(banktypes.GenesisBalancesIterator{}, simapp.DefaultNodeHome),